The four-planet lineup that began in January concludes by mid- to late February, as Saturn sinks increasingly lower in the ...

Canadian astronomers have taken an extraordinary step in understanding how planets are born, using the James Webb Space ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

The article humorously portrays each planet of the solar system as different types of gym personalities. Jupiter is obsessed ...

The solar system is portrayed as a dynamic, gossip-fueled family, with each planet offering snide comments about one another, ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative stages and played a critical role in planetary formation.

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...